Asterisk vs. Calilio

Build Voice, Video and Text Applications Easily With Asterisk, The World's Most Widely Adopted Open Source Communications Software Development Framework. Asterisk is an open source framework for developing state-of-the-art communications applications. Asterisk includes hundreds of pre-built components that handle the complex, low-level details of voice, video, and text communications. Developers use Asterisk to create custom communications solutions and to build innovative communications products. Discover how Asterisk can power your next-generation communications deployment.

Calilio is a cloud-based business phone system and call center software built for sales, support, and remote teams. It helps businesses move away from traditional desk phones and on-site PBX hardware by enabling teams to make and receive calls over the internet using VoIP technology from desktop, web browser, iOS, and Android devices. With Calilio, businesses can buy or port virtual phone numbers, including local, mobile, and toll-free numbers, from 100+ countries and manage customer communications from a shared workspace.